This is the community based forum, and Atlassian is seldom active here. You are better of making a proper support request at support.atlassian.com or contacting your 3rd party Atlassian partner for assistance with this.
Ps. the link you posted does not work
If you spend enough time as a Jira admin - whether you are managing a single, mid-sized instance, a large enterprise one or juggling multiple instances at once - you will eventually find yourself in ...
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